new shocks - probelm

I recently (400 miles ago) replaced my lower control arm bushings, clutch, rear main seal, power steering hoses, shocks, shock mounts and a bunch of other stuff while i was in there. Now I have a clunk in the right side shock. the new shocks are Koni's and the new upper mounts are lemforder. The right front shock mount squeaks / groans when I turn the wheel. Is it possible that the new mount is bad already? I checked that everything is torqued properly. Opinions?

Sorry to be the bearer of bad news, but if it groans at low speed while turning the wheel from lock to lock, it's likely a cracked strut mount. Take a look, is it visibly cracked?

Maybe the car got lowered down off of the jack a little faster than intended? Happened to me once--I had just finished a replacement and my jack's valve is pretty bad so the car came down a little fast and cracked it. Luckily I had a spare mount, but still. Good luck--let us know how it goes!

I've seen the lower spring perches on the Yellows spin on the shock body and cause noise like a bad strut mount. We've had it go one of two ways; we're able to tap the perch back onto the shock, or we've had to warranty the shock out with Koni.

I would find it hard to believe that a brand new Lemforder mount failed. Did you install the large washer and dust cap on the bottom of the new mounts? Everything torqued properly?

There are lots of threads comparing them to koni yellows, bilsteins and various coil over set ups. It seems the FSD were quite popular in europe before readily available here - and the boards are full of people asking about low speed flutter, creaking etc. But in the end - most posts agree that these cars are so much better with the FSD compared to stock that they live with it. In my experience, the potholes,train tracks and highway expansion joints are nothing to be feared now. The car is smooth and predictable - and I am still using runflats.
A few considerations - some people opted to put an OEM top mount instead of aftermarket OR they opted for the power flex top mount for a snug fit. (just for the strut top though, not the entire suspension). and lastly, many people replaced them with newer FSD's only to find out that they had faulty sway bar drop links the entire time!
At the end of the day- if the mounts check out for you- Id still install FSD's again on my car even with the noise. YES, FIX YOUR CLUNK, but know that the FSD's will still not be perfectly quiet. There are plenty of people that talk about using socket on the top nut and spinning the shaft in the process. The right tool and nut holder will make the job a breeze.

I am also running runflats, and am really happy with the ride and handling on the FSD's. I changed to powerflex front control arm bushings at the same time, that was a great choice! My endlinks looked good at the time. I am going to get everything a good look over, bc my noise is limited to the right front side (and the brake pad banging around on the right rear.) Thanks for your opinion R56devotion!